| OBRATE CECIL Beneficial Owner of more than 10% of a Class of Security | Purchase at price 0.72 per share. | Direct | 250,000 | Feb 12, 2015 |
| OBRATE CECIL Beneficial Owner of more than 10% of a Class of Security | Purchase at price 0.00 per share. | Direct | 1,277,777 | Feb 12, 2015 |
| ROONEY PATRICK G Former | Sale at price 0.00 per share. | Direct | 1,821,600 | Nov 3, 2014 |
| OBRATE CECIL Beneficial Owner of more than 10% of a Class of Security | Purchase at price 0.80 - 2.08 per share. | Direct | 1,116,024 | Oct 21, 2014 |
| ROONEY PATRICK G Chief Executive Officer | Purchase at price 0.00 per share. | Direct | 300,000 | Aug 22, 2014 |
| CONN COREY N Chief Financial Officer | Purchase at price 0.00 per share. | Direct | 50,000 | Aug 22, 2014 |
| OBRATE CECIL Beneficial Owner of more than 10% of a Class of Security | Sale at price 1.92 per share. | Direct | 480 | Aug 6, 2014 |
| ROONEY PATRICK G Chief Executive Officer | Purchase at price 0.00 per share. | Direct | 1,000,001 | Jun 30, 2014 |
| CONN COREY N Chief Financial Officer | Purchase at price 0.00 per share. | Direct | 250,000 | Jun 30, 2014 |
| OBRATE CECIL Beneficial Owner of more than 10% of a Class of Security | Purchase at price 1.96 - 2.80 per share. | Direct | 53,811 | Jun 25, 2014 |
| ROONEY PATRICK G Chief Executive Officer | Purchase at price 0.00 per share. | Direct | 1,018,000 | May 19, 2014 |
| CONN COREY N Chief Financial Officer | Purchase at price 0.00 per share. | Direct | 300,000 | May 19, 2014 |
| OBRATE CECIL Beneficial Owner of more than 10% of a Class of Security | Conversion of Exercise of derivative security at price 1.44 per share. | Direct | 1,500,005 | May 16, 2014 |
| OBRATE CECIL Beneficial Owner of more than 10% of a Class of Security | Purchase at price 1.92 - 3.00 per share. | Direct | 52,927 | Mar 31, 2014 |
| OBRATE CECIL Beneficial Owner of more than 10% of a Class of Security | Conversion of Exercise of derivative security at price 1.00 per share. | Direct | 1,000,000 | Dec 19, 2013 |
| SOLARIS OPPORTUNITY FUND L P Beneficial Owner of more than 10% of a Class of Security | Sale at price 0.15 per share. | Direct | 120,000 | May 5, 2006 |
| SOLARIS OPPORTUNITY FUND L P Beneficial Owner of more than 10% of a Class of Security | Sale at price 0.12 per share. | Direct | 96,000 | May 5, 2006 |
| SOLARIS OPPORTUNITY FUND L P Beneficial Owner of more than 10% of a Class of Security | Sale at price 0.12 per share. | Direct | 96,000 | May 5, 2006 |
| GENERAL ELECTRIC CO Beneficial Owner of more than 10% of a Class of Security | Sale at price 0.05 per share. | Direct | 405,000 | Jun 27, 2003 |
| MEYER S LEWIS Director | Purchase at price 0.38 per share. | Direct | 3,800 | Jun 1, 1999 |
| MEYER S LEWIS Director | Purchase at price 0.28 - 0.53 per share. | Direct | 26,570 | May 28, 1999 |
| BROOKS GARY H President | Purchase at price 0.19 - 0.27 per share. | Direct | 8,550 | May 21, 1999 |
| BROOKS GARY H President | Purchase at price 0.19 - 0.27 per share. | Direct | 10,450 | May 21, 1999 |
| GOULD K LANCE Director | Stock Award(Grant) at price 4.13 per share. | Direct | 15,017 | Jun 9, 1995 |
| WOOD GARY B Chief Executive Officer | Purchase at price 2.00 - 2.75 per share. | Indirect | 12,039 | Mar 17, 1995 |
| OMNIMED CORP Beneficial Owner of more than 10% of a Class of Security | Purchase at price 2.00 - 2.75 per share. | Indirect | 18,959 | Mar 17, 1995 |
| URO-TECH LTD Beneficial Owner of more than 10% of a Class of Security | Purchase at price 2.00 - 2.75 per share. | Indirect | 70,220 | Mar 17, 1995 |
| BAKER HOWARD R Vice President | Stock Award(Grant) at price 2.63 per share. | Direct | 52,387 | Feb 23, 1995 |
| HITCHENS RICHARD E Vice President | Stock Award(Grant) at price 2.63 per share. | Direct | 75,229 | Feb 23, 1995 |
| RODRIGUE DAVID O Officer | Stock Award(Grant) at price 2.63 per share. | Direct | 52,600 | Feb 23, 1995 |
| GUEZURAGA ROBERT M President | Conversion of Exercise of derivative security at price 8.25 per share. | Direct | 11,641 | Dec 10, 1993 |
| BAKER HOWARD R Divisional Officer | Conversion of Exercise of derivative security at price 4.95 per share. | Direct | 12,395 | Dec 10, 1993 |
| GOULD K LANCE Director | Conversion of Exercise of derivative security at price 8.25 per share. | Direct | 4,315,286 | Dec 10, 1993 |
| HITCHENS RICHARD E Divisional Officer | Conversion of Exercise of derivative security at price 4.95 per share. | Direct | 15,701 | Dec 10, 1993 |
| WOOD GARY B Director and Beneficial Owner of more than 10% of a Class of Security | Conversion of Exercise of derivative security at price 8.25 per share. | Indirect | 15,835,842 | Dec 10, 1993 |
| OMNIMED CORP Beneficial Owner of more than 10% of a Class of Security | Conversion of Exercise of derivative security at price 8.25 per share. | Indirect | 14,147,628 | Dec 10, 1993 |
| LINC VENTURE LEASE PART Beneficial Owner of more than 10% of a Class of Security | Conversion of Exercise of derivative security at price 8.25 per share. | Indirect | 11,099,996 | Dec 10, 1993 |
| MULLANI NIZAR A Director | Conversion of Exercise of derivative security at price 8.25 per share. | Direct | 4,660,664 | Dec 10, 1993 |
| URO-TECH LTD Beneficial Owner of more than 10% of a Class of Security | Conversion of Exercise of derivative security at price 8.25 per share. | Direct | 10,855,136 | Dec 10, 1993 |
| URO TECH MANAGEMENT CORP Beneficial Owner of more than 10% of a Class of Security | Conversion of Exercise of derivative security at price 8.25 per share. | Indirect | 10,855,136 | Dec 10, 1993 |
| LINC CAPITAL INC Beneficial Owner of more than 10% of a Class of Security | Conversion of Exercise of derivative security at price 8.25 per share. | Indirect | 5,549,998 | Dec 10, 1993 |